RESISTANCE OF HARDWOODS TO CREOSOTE. 



31 



Table 3. — Results of penetrance tests on individual pieces — Continued. 



CHESTNTTT— HEARTWOOD. 





Mois- 

 ture. 



Aver- 

 age 

 num- 

 ber of 

 rings 

 per 

 inch. 



12 

 15 

 13 



Oven 

 dry 

 weight 

 per 

 cubic 

 feet. 



Time of 

 treat- 

 ment. 



Time required 



to penetrate 



24 inches. 



Penetrations. 



Piece No. 



First 

 end. 



Second 

 end. 



Aver- 

 age 

 lon- 

 gitu- 

 dinal. 



Radial. 



Tangential. 





Aver- 

 age. 



Maxi- 

 mum. 



Aver- Maxi- 

 age. | mum. 



60 



Per ct. 



Pounds. 

 24.00 

 28. .80 

 26.35 



Hours. 

 1 

 1 



2 



Mn. 



Mm. 



Indies'. 



2.96 

 5.14 

 3.89 



Inches. 



0.15 



.20 



.20 



Inches. Inches. Inches. 

 0.20 , 0.20 i 0.20 



61 



6.2 

 6.0 







.30 ! .20 .30 









.25 .15 .20 















4.00 



.18 .25 1 .18 



.23 





\" 



1 1 













WHITE ASH— HEARTWOOD. 



HICKORY— HEARTWOOD. 



YELLOW BIRCH— HEARTWOOD. 



SILVER MAPLE— HE ARTWOOD. 



SILVER MAPLE— SAPWOOD. 



BASSWOOD— HEARTWOOD. 



66 



5.0 



20 | 

 16 

 19 | 



35.50 

 34.70 

 32.85 



i 

 l 2 

 2 



7 

 4 



7 



4.81 

 8.84 

 10.83 



0.35 ! 

 .50 ! 

 .52 f 



0.50 

 .60 

 .60 



0.25 

 .50 

 .45 



0.30 



67 



.60 



68 



10.6 



.50 













8.16 



.«; 



.57 



.40 



.47 













60 



2.9 



4 

 5 

 4 



51.60 

 52. 50 

 52.20 



X 



1- 



2 







4.50 

 4.83 

 8.84 



0.25 

 .30 

 .60 



1 

 0.30 1 0.30 



.40 .25 

 .75 .60 



0.40 



70 







.30 



71 









.7fl 

















6.06 .38 



.48 .38 .47 























30 



31 



2.4 



12 

 14 

 18 



46.00 

 44.50 

 42.30 



X 



I 



2 



Immediately. 

 Do! 



8.17 

 10.83 

 12. 16 | 



0.30 

 .30 

 .25 



0.30 

 .35 

 .30 



0.35 

 .30 

 .30 



0.40 

 .40 



32 



7.0 



.45 





10.39 . 



.28 



.32 



.32 



.42 

















33 





12 

 13 

 11 



36. 24 

 35.70 

 36.20 



i 

 1 



2 







3.50 

 3.56 

 3.50 



0.20 

 .30 

 .40 



0.30 

 .40 



.50 



0.30 



.40 

 .40 



40 



34 









.60 



35 









.60 













Average. 



3.52 



.30 



.40 



.37 



.53 

















36 - -- 



4.4 



10 

 10 



7 



32.40 

 33.17 



X 



l" 

 2 





7.17 

 14.84 

 11.50 



Complete 



do. 1 1 





37 



30 



60 







38 





do 















11.17 





















1 





39 1 



22 

 20 



18 



30. 30 



29.60 

 31.90 



r 



2 







7.00 

 14.84 

 14.50 



0.30 

 .20 

 .45 



0.45 

 .20 

 .50 



0.30 



.25 



.40 



0.50 



40. 

 41. 



i 12.3 



12 



7 



12 



7 



.30 



.40 











12.11 



.32 



.38 



.32 



.40 



















- i Complete radial penetration was at least three-fourths inch. Where part of specimens showed complete 

 radial penetration they were not included in the average. 



